Draft-gear.



G. C. MURRAY.

\ DRAFT GEAR.

APPLICATION FILED MAY 23,1912.

1,175,549. Patented Mar.- 14,- 1916.v

Z-SHEETS-SHEET I. Q

. G. c. MURRAY.

DRAFT GEAR. APPLICATION FILED MAY 23, I912. v 15175.549. Patented Mar.14,1916.

v 2 SHEETSSHEET 2.

UNITED STATES PATENT onnion.

GEORGE C. MURRAY, 03 dHICAGO, ILLINOIS; ASSIGNOR T KEYOKE RAILWAY.EQUIP- I .MENT C M Y, A CQRPQRATION OF. DELAWARE.

I nmrii-enan;

. To all z oho m it may concern:

which the following is a 1.5- nection referred to has beenby Be, itknown that a citizen of theUnited States, residin'gat Chicago, inthecounty of Cook and State otlllinois, have invented certain new anduseful Improvements in Draft-Gear, of

specification. The object of my invention is, to provide improvedmeanshfor connecting the yoke used in connection yvith draft gears ofrail.-

wa'y rollingstock vith the draw-bar which" The most common carries thecoupler.

means heretofore used for forming the conthe use'of rivets passingthrough "the outer ends of the yoke andthe inner end of the draw-ban vWIth-mturnedlugs 14; adapted to en- It is onenot thepurposes of myinvention to do away with thedisadvantages inherent in the use ofrivetsandother forms of con-.

Qof the structure the-form of the 'nection heretofore used.

The precise ob ect following description and claims,. taken connectionwith the drawings in which- Figure 1 is a perspective iew broken away.Fig; .2 is a fragmentary v ew showing several of the partsgoingto' makeup my improved structure, the parts being separated but occupyingapproximately their proper relative positions, and spaced apartsufiieiently to show different elements. Fig. 2

is a view showing a detail 'modificat'i'o'n.

. purposes of. explanation, k I for. structure 1n which my iiinventionma y beembodied. It will. be understood,p however,

'Ythat my invention is applicable without ad- I f tion Fig. 3 is. alongitudinal central vertical sec-. through the end of the draw-bar andyoke. Fig. {1 is a transverseseotion upona vertical plane'passingthrough-the keys by which various members are-held together.

Fig.5 is a longitudinal cross-section showi form ofdraw-bar.

ing," my invention applied to: a different ,I have illustrated, "for Inthe. drawingags,

one speci-fic form heren'ce; to, ;,the" j specificib Structural-- formsfiherein shown. nd-.,ji1-1u trated; and that "the relation ofthe-variouspartsmaybe quite, widely changed without departlng from; my

The draw-bar 1 carriesiat its outert end the usual coupler-head'Q nndatits inner {3 d i rovided with. an enlarged head'3,at

If outer ,.end of which 'Speeifimation of Letters Patent.

I, GEORGE MURRAY)? ment of these parts.

. 7 and nature of my in-- vention' will more'clearly appear from the.

with part and-key openings pending ears" 22 her. When assembled, asshown in Fig. 1,

heed-- he f .ge e

I I Patented Mar. 14, 1916. Application filed May 23 1912. Serial No.699,188.

shoulders 4 .to be engaged by the outer ends of the yoke. In Fig. 1 thedraw-bar and yoke are illustrated in connection with oneof thedraftsills 7 the other draft sill being omitted to more plainly exhibit the"structure, :The draft sill 7 is provided'with the usual stops 8 and9.-and within the yoke v I have-shown. a draft spring 10 having at itsends followers 11-, 12, which are adapted I i "to coactwith the stops 8and 9. 'It will be The outer ends theyoke t are provided draw-bar,- Iprovide a clamp designated that illus fl edflbeing shownm'erely for thepurpose of illustrating "a" common arrauge-v generally'by the numeral16. According to my present invention 1' construct the clamp 16. in twoparts designated by'the'numerals 17 and 18. The upper clamp member 17comprises a top plate 19 "having depending 'ears20, the top clamp member17 "being adapted to surround the top and sides of the engaging parts ofthe yoke and draw bar. The lower clamp member 18 extends between theears 20 beneath the yoke and draw-bar and consists of a bottom plate 21having at its sides depending earst22 and a lug 27 to hold clampshoulders against C yoke shoulders. I a

' v Thedepending'ea'rs 20 of the top yoke member are provided with keyopenings 23' 24 are provided in the de of the lower clamp memthe upperand lower clamp members are held together by means of a key 25 passingthrough'the-key openings 23 and 24;. The lower clamp 1ner nber -l8fisalso provided with a transverse, lug or flange 40 against which thekey25 bears, 27 of the lower clampmernber'lfi against the lu s'ele, 15of the yoke members.

*Itfi s advantageous to construct the 16in; two separable members forthe reason that it facilitates assemblage of the parts.

and ffo'r the further reason that when so constructed the clamp mayheprovided with ears; 26- and 7 p 'uppen na'lowe jrnem'bers r:speetively,- such ea haa thus holding the lug .clamp' integrally thelugs or. shoulders 26 and 27. fiponthe clamp 16 cannot extend'inwardlyficient depth to extend inwardly'to' the'shank ,of the draw-bar outsideof the lugs 14,

upon the ends of the yoke- If constructed farther than the outer surfaceof the: head of the draw-bar on account of the impossibility ofassembling a structure so-made.

\Vhile not in all cases necessary, I prefer to key thedepending ears 20of the upper cIamp Lmem'ber 19 directly to the draw-bar as illustrated.For this purpose-I have shown key openings 29 in the depending ears 2(of the upper clamp member and a key opening '30 extending through thedrawbar. -When assembled a. key 31 extends through the depending or sideears'20 of the upper clamp member and through the draw-bar,- this keypreferably. also extending outwardly through slots 32 in the draftsills. The. keys, and 31 may both 'be secured in position by means ofcotter-pins 33.:

The. key 25 is. suflicient in itself to hold the clamp members together,thus securing.

theinturned lugs 14, 15 of the yoke in 0perativeengagement withthesho-ulders 4 upon the draw-bar. In the absence of further securingmeans, however, the clamp might, under some circumstances, becomedislodged from its posltion and move out-- 'Wardly relative to adraw-bar ofthe construction shown in Figs. 1 te l, thus releasing theinner ends of the yoke,- and upon bufiing stresses the head ofthe.draw-bar might compress the draft spring without moving the yokeinwardly. "While such compression of the draft spring and-inwardmovement of the head of the dra -barwithout moving the yoke might. notbe a serious detriment to the action of the device, it is preferablethat the yoke be carried inwardly with the draw-bar when the draftrigging is comcircumstances the car may-be moved by the pressed bybufling stresses. For these rea- 'SOns I prefer to use the key 31passing through the depending ears 20 of the upper clamp member andthrough the draw-bar;

An additionaladvantage secured by the use I of the key 31 lies in thefact that it passes' thrcughslots32 in the draft sills and affords meansfor moving a car when the draft rigging is broken or disabled. Undersuch transmission of force directly from the draw bar through the key31' to the ends of the slots in the draft sills.

, It will be seen that the yoke 5 can be displaced laterally when it isdesired -to disengage its lugs 14 and 15 from the shoulders 4, or whenit is desired to assemble these parts in theirfnormal operativerelation. It

will also be seen that if desired the yoke can be hinged as indicatedat'6 in Fig. 2

5 In Fig. 5 I show a. draW-bar-SO having recesses 51 in which the lugs52 of the yoke and the lugs 53 of the clamp are received.

In this construction the key passing'through the yokeand' draw-bar maybedispensed with as the key 54; passing through the upper and lower clampmembers 55 56 will, in conjunction with the recesses 51 and lugs 52 and53, securely hold the parts together.

I claim L In a-device of the classdescribed, a draw-bar having ashouldered butt, a yokehaving lugs at its outer ends adapted tofit overand engage the shoulders of said butt, a clamp surrounding theengagingparts of said. yoke and .drawsbar, said clamp comprising twomembers,-'and means fengaging' said clamp members to hold them inoperative engagement with said yoke and draw-bar and thereby gmaintains'aidfdraw-bar and strap in assembled relation.

2. In a device of theclass'described, a draw-bar having shoulders nearits inner end, a yoke having lugs at its outer-endsadapted toengage saidshoulders, a clamp surrounding the engaging parts ofsaid draw-bar andyoke, said clamp'com'prising two members, said members' being arrangedfor assembly'to-surround the engaging parts .of said-yoke anddrawban-and a key -extend-ing through; openings in; said clamp members wheninassembled relation to hold them in operative engagementwith said yokeand draw-bar, i

3.-In a device of the class described, a

draw-bar having shoulders near its inner end, a yoke having lugs'at itsouter ends adapted toengage'satid shoulders, a 'clamp surrounding theengaging. parts of said draw-bar and. yoke, .said clamp compri'singtwomembers,- saidmembers being" arranged for assembly to: surround theengaging parts of said yoke andldrawj-bar, aikey extending through oneof said clamp members and end, a yoke having inturnedlugs at its endsengaging said shoulders, a clamp surrounding the engaging parts of saidyoke and draw-bar, said clamp consisting of upper and lower separablemembers; said clamp members having inturned lipsadapted'to overlie theinturned lugs on said yoke,and

means for securing sa1d clamp members together.-

' 5. In a device ofthe class described, a

draw-bar having shoulders near its inner end, a yoke having inturnedlugs at its outer ends engaging said shoulders, a clamp surrounding theengaging parts of said yoke and draw-bar,'said clamp consisting of upper and lower members, said upper clam upper and lower member embracingthetop and sides of said member extending across the bottom thereof,

and a key extending through said upper and lower clamp members andmaintaining the same in assembled relation. 6. In a device of the classdescribed, :1

end, av yoke having inturned lugs at its outer ends engaging saidshoulders, a clamp surrounding the engaging parts of said yoke anddraw-bar, said clampconsisting of upperand lower members, said upperclamp member comprising a top plate and dependingears, said lowerclampmember lyin between said depending ears below sai draw-bar andyoke, anda key extending 'bers and end, a yoke having inturned lugs at its outerends engaging said shoulders, a clamp sur rounding the engaging parts ofsaid .yokeand draw-bansaid clamp consisting of l1p-.

I per and lower'niembers, said upper clamp member comprising atop plateand dependears and said draw-bar. draw-bar havmg shoulders near itsmneri of the classdescribed, a' draw-bar having shoulders 7 near .1tsinner ling ears, said lower clamp member lying be-- tween said dependingears below said drawbar and yoke, a key extending through said upper andlower clamp members, and a second key extending through said depending8. In a device of the class described, a yoke strap, a draw bar adaptedto be seated therein by movement transversely of said strap, a hollowhead adapted to be subsequently assembled with the conjoined strap anddraw bar, and locking means penetrating but one of said elements to lookall ofthem in operative conjunction. '9. In a device of the classdescribed, a yoke strap, a draw bar seated therein by movementtransversely thereof, a separately formed hollow-head slidablelongitudinally of thestrap, and a locking key interposed between saidstrap anda' part of said hollow head. a

-In testimony my name.

whereof, I have subscribed GEORGE O. MURRAY. Witnesses:

' HENRY A.;PARKs,

ANNA L. WAL'roN.

